csrfToken example

if (!$request->headers->has($header)) {
      throw new AccessDeniedHttpException();
    }
    if ($account->isAnonymous()) {
      // For anonymous users, just the presence of the custom header is       // sufficient protection.       return;
    }
    // For authenticated users, validate the token value.     $token = $request->headers->get($header);
    if (!\Drupal::csrfToken()->validate($token, $header)) {
      throw new AccessDeniedHttpException();
    }
  }

}

$this->setMockContainerService('language_manager');
    $this->assertNotNull(\Drupal::languageManager());
  }

  /** * Tests the csrfToken() method. * * @covers ::csrfToken */
  public function testCsrfToken() {
    $this->setMockContainerService('csrf_token');
    $this->assertNotNull(\Drupal::csrfToken());
  }

  /** * Tests the transliteration() method. * * @covers ::transliteration */
  public function testTransliteration() {
    $this->setMockContainerService('transliteration');
    $this->assertNotNull(\Drupal::transliteration());
  }

  

$element_style_configuration, $toolbar_configuration,
    ] = self::configureViewModes($editor);

    $dynamic_plugin_config['drupalElementStyles']['viewMode'] = $element_style_configuration;
    if ($this->getConfiguration()['allow_view_mode_override']) {
      $dynamic_plugin_config['drupalMedia']['toolbar'][] = $toolbar_configuration;
    }
    $dynamic_plugin_config['drupalMedia']['metadataUrl'] = self::getUrlWithReplacedCsrfTokenPlaceholder(
      Url::fromRoute('ckeditor5.media_entity_metadata')
        ->setRouteParameter('editor', $editor->id())
    );
    $dynamic_plugin_config['drupalMedia']['previewCsrfToken'] = \Drupal::csrfToken()->get('X-Drupal-MediaPreview-CSRF-Token');
    return $dynamic_plugin_config;
  }

  /** * {@inheritdoc} */
  public function getElementsSubset(): array {
    $subset = $this->getPluginDefinition()->getElements();
    $view_mode_override_enabled = $this->getConfiguration()['allow_view_mode_override'];
    if (!$view_mode_override_enabled) {
      $subset = array_diff($subset, ['<drupal-media data-view-mode>']);
    }